Comparison

CNS Black and Restful Night Extended Release

CNS Black (MM Sports Nutrition) lists 6 distinct ingredients and Restful Night Extended Release (Dr. Whitaker) 3 (rows of one ingredient counted once); 3 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.48.

Amount per serving (and % of the Daily Value)
IngredientCNS BlackRestful Night Extended Release
Theaninenot disclosed200 mg
Melatoninnot disclosed3 mg
GABAnot disclosed100 mg
Argininenot disclosed
Cowhagenot disclosed
N-Acetyl Tyrosinenot disclosed

Amounts are per serving as DSLD gives them: CNS Black, 3.6 g; Restful Night Extended Release, 1 tablet. Current labels entered August 2014 and July 2018. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own